<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>文本样式</title>
	<style type="text/css">
		.one{word-spacing: 1em;}
		.two{letter-spacing: -0.5em;}
	</style>
</head>
<body>
	<p>CSS层叠样式表（Cascading Style Sheets）</p>
	<p class="one">CSS层叠样式表（Cascading Style Sheets）</p>
	<p class="one">CSS层 叠 样 式 表（Cascading Style Sheets）</p>
	<p class="two">CSS层叠样式表（Cascading Style Sheets）</p>	
</body>
</body>
</html>